[jochem9]

Not who you replied to, but I can relate.

I'm not great at math, but I've trained myself to do basic calculations in my head. I need to concentrate hard and it goes very slow (I'm also a fast thinker for other stuff). I do this because it's a very useful skill in day-to-day life, so worth training.

I once read that many people basically spin up a virtual machine in their mind to do math. That is how it feels to me too. All simulation, no hardware acceleration, so very slow.

[neom]

I'm really curious what people who are good at math are actually doing. I presume my thinking methodologies are just so far removed from how they think that I'm unable to imagine it, I can hardly even visualize a number never mind manipulate them, it's strange. I couldn't tell time till I was in my early teens, and even then it was a lot of work, and even today I wouldn't exactly call it "automatic".